Axiohm 7156 Especificações descarregar pdf (Página 50)

Diagnostics 7156 Owner’s Guide

October 199542

Level 0 Diagnostics

The printer automatically performs level 0 diagnostics when the printer is put on-

line. Level 0 diagnostics comprise the following actions:

• Motors and solenoids are turned off.

• Microprocessor timing is checked, CRC check of the firmware ROM is

performed, external RAM is read.

• The green LED on the slip table flashes once if this action succeeds.

• Level 0 diagnostics stop if this action fails. Failure is indicated by the

printer going dead: knife and printhead do not home, the platen does not

open, LEDs are not lit, the printer is unable to communicate with the

host.

• Knife is homed. A fault condition is caused if this action fails.

• Slip platen is opened.

• Slip printhead is homed. A fault condition is caused if this action fails.

• The status of all sensors is checked, and the status bytes are updated.

If the printer has not been turned on before, or a new EEROM has been installed,

the default values for the printer functions will be loaded into the EEROM during

level 0 diagnostics, This action will be signaled by two beeps. These values can be

changed in level 1 diagnostics. See “Level 1 Diagnostics” for the functions and

their settings.

If the printer continues to beep twice each time it is turned on, it is an indication

that the EEROM has failed.

When the last step is complete, the Paper Feed button is enabled and the printer

is ready for normal operation. Information about the tests is available to the

communication interface through the commands.

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